pxe: Modify README to add the description about FIT image

Use environment variable "kernel_addr_r" to indicate the location
in RAM where FIT image will be stored.
Use label command "kernel" to indicate which <path> the FIT image at.

Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
This commit is contained in:
Wenbin Song 2016-09-01 16:28:22 +08:00 committed by Tom Rini
parent f63963f048
commit fce78503b2

View file

@ -78,9 +78,9 @@ pxe boot
address of the tftp server from which other files will be retrieved.
kernel_addr_r, initrd_addr_r - locations in RAM at which 'pxe boot' will
store the kernel and initrd it retrieves from tftp. These locations will
be passed to the bootm command to boot the kernel. These environment
variables are required to be set.
store the kernel(or FIT image) and initrd it retrieves from tftp. These
locations will be passed to the bootm command to boot the kernel. These
environment variables are required to be set.
fdt_addr_r - location in RAM at which 'pxe boot' will store the fdt blob it
retrieves from tftp. The retrieval is possible if 'fdt' label is defined in
@ -138,9 +138,9 @@ menu default - set this label as the default label to boot; this is
specified in a different way
kernel <path> - if this label is chosen, use tftp to retrieve the kernel
at <path>. it will be stored at the address indicated in
the kernel_addr_r environment variable, and that address
will be passed to bootm to boot this kernel.
(or FIT image) at <path>. it will be stored at the address
indicated in the kernel_addr_r environment variable, and
that address will be passed to bootm to boot this kernel.
append <string> - use <string> as the kernel command line when booting this
label.